How to use __simulateChange method in ng-mocks

Best JavaScript code snippet using ng-mocks

time-picker-control.component.spec.ts

Source: time-picker-control.component.spec.ts Github

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...52 const {fixture, component} = setup()53 const changeSpy = jest.fn()54 component.registerOnChange(changeSpy)55 const matSelect = getSelect(fixture)56 matSelect.__simulateChange('12:00:00Z')57 expect(changeSpy).toHaveBeenCalledWith('12:00:00Z')58 expect(changeSpy).toHaveBeenCalledTimes(1)59 component.onDestroy.ngOnDestroy()60 matSelect.__simulateChange('14:00:00Z')61 expect(changeSpy).toHaveBeenCalledTimes(1)62 })63 })64 describe('.registerOnTouched', () => {65 it('registers change events to the select form control value changes, and unsubscribes when destroyed', () => {66 const {fixture, component} = setup()67 const touchedSpy = jest.fn()68 component.registerOnTouched(touchedSpy)69 const matSelect = getSelect(fixture)70 matSelect.__simulateChange('12:00:00Z')71 expect(touchedSpy).toHaveBeenCalledTimes(1)72 component.onDestroy.ngOnDestroy()73 matSelect.__simulateChange('14:00:00Z')74 expect(touchedSpy).toHaveBeenCalledTimes(1)75 })76 })77 describe('.setDisabledState', () => {78 it('disables the inner form control, does not emit status changes', () => {79 const {component} = setup()80 let statusChange = null81 const sub = component.control.statusChanges82 .subscribe((v) => statusChange = v)83 component.setDisabledState(true)84 expect(component.control.disabled).toBeTruthy()85 component.setDisabledState(false)86 expect(component.control.disabled).toBeFalsy()87 expect(statusChange).toBe(null)...

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mock-control-value-accessor.ts

Source: mock-control-value-accessor.ts Github

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...10 /​**11 * @deprecated use isMockControlValueAccessor instead (removing in A13)12 * @see https:/​/​ng-mocks.sudo.eu/​api/​helpers/​isMockControlValueAccessor13 */​14 public __simulateChange(value: any): void;15 /​/​ istanbul ignore next16 public __simulateChange() {17 /​/​ nothing to do.18 }19 /​/​ istanbul ignore next20 /​**21 * @deprecated use isMockControlValueAccessor instead (removing in A13)22 * @see https:/​/​ng-mocks.sudo.eu/​api/​helpers/​isMockControlValueAccessor23 */​24 public __simulateTouch() {25 /​/​ nothing to do.26 }27 /​/​ istanbul ignore next28 /​**29 * @deprecated use isMockValidator instead (removing in A13)30 * @see https:/​/​ng-mocks.sudo.eu/​api/​helpers/​isMockValidator31 */​32 public __simulateValidatorChange() {33 /​/​ nothing to do.34 }35}36/​**37 * MockControlValueAccessor exposes access to a mock ControlValueAccessor.38 * It should be used in a combination with isMockControlValueAccessor.39 *40 * @see https:/​/​ng-mocks.sudo.eu/​api/​helpers/​isMockControlValueAccessor41 */​42export interface MockControlValueAccessor {43 /​**44 * It simulates an external change of the value.45 * Please consider usage of ngMocks.change().46 *47 * @see https:/​/​ng-mocks.sudo.eu/​extra/​mock-form-controls48 * @see https:/​/​ng-mocks.sudo.eu/​api/​ngMocks/​change49 */​50 __simulateChange(value: any): void;51 /​**52 * It simulates an external touch.53 * Please consider usage of ngMocks.touch().54 *55 * @see https:/​/​ng-mocks.sudo.eu/​extra/​mock-form-controls56 * @see https:/​/​ng-mocks.sudo.eu/​api/​ngMocks/​touch57 */​58 __simulateTouch(): void;59}60/​**61 * MockValidator exposes access to a mock Validator.62 * It should be used in a combination with isMockValidator.63 *64 * @see https:/​/​ng-mocks.sudo.eu/​api/​helpers/​isMockValidator...

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Using AI Code Generation

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1import { __simulateChange } from 'ng-mocks';2describe('TestComponent', () => {3 let component: TestComponent;4 let fixture: ComponentFixture<TestComponent>;5 beforeEach(async(() => {6 TestBed.configureTestingModule({7 imports: [FormsModule]8 }).compileComponents();9 }));10 beforeEach(() => {11 fixture = TestBed.createComponent(TestComponent);12 component = fixture.componentInstance;13 fixture.detectChanges();14 });15 it('should test input', () => {16 const input = fixture.debugElement.query(By.css('input'));17 __simulateChange(input.nativeElement, 'test');18 fixture.detectChanges();19 expect(component.test).toEqual('test');20 });21});22import { Component, OnInit } from '@angular/​core';23@Component({24})25export class TestComponent implements OnInit {26 test: string;27 constructor() {}28 ngOnInit() {}29}30<input type="text" [(ngModel)]="test" /​>

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Using AI Code Generation

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1import { __simulateChange } from 'ng-mocks';2import { ComponentFixture, TestBed } from '@angular/​core/​testing';3import { AppComponent } from './​app.component';4import { By } from '@angular/​platform-browser';5describe('AppComponent', () => {6 let fixture: ComponentFixture<AppComponent>;7 let component: AppComponent;8 beforeEach(() => {9 TestBed.configureTestingModule({10 });11 fixture = TestBed.createComponent(AppComponent);12 component = fixture.componentInstance;13 });14 it('should update value', () => {15 const input = fixture.debugElement.query(By.css('input'));16 __simulateChange(input, 'test');17 expect(component.value).toEqual('test');18 });19});

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Using AI Code Generation

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1import { __simulateChange } from 'ng-mocks';2describe('MyComponent', () => {3 let component: MyComponent;4 let fixture: ComponentFixture<MyComponent>;5 beforeEach(async(() => {6 TestBed.configureTestingModule({7 imports: [FormsModule],8 }).compileComponents();9 }));10 beforeEach(() => {11 fixture = TestBed.createComponent(MyComponent);12 component = fixture.componentInstance;13 fixture.detectChanges();14 });15 it('should create', () => {16 expect(component).toBeTruthy();17 });18 it('should set the value of the input', () => {19 const input = fixture.debugElement.query(By.css('input'));20 __simulateChange(input, 'newValue');21 expect(component.myValue).toEqual('newValue');22 });23});24import { Component, OnInit } from '@angular/​core';25@Component({26 <input type="text" [(ngModel)]="myValue" /​>27})28export class MyComponent implements OnInit {29 myValue = '';30 constructor() {}31 ngOnInit(): void {}32}

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Using AI Code Generation

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1import { __simulateChange } from 'ng-mocks';2describe('AppComponent', () => {3 let component: AppComponent;4 let fixture: ComponentFixture<AppComponent>;5 beforeEach(async(() => {6 TestBed.configureTestingModule({7 imports: [FormsModule]8 })9 .compileComponents();10 }));11 beforeEach(() => {12 fixture = TestBed.createComponent(AppComponent);13 component = fixture.componentInstance;14 fixture.detectChanges();15 });16 it('should create', () => {17 expect(component).toBeTruthy();18 });19 it('should have a button', () => {20 const button = fixture.debugElement.query(By.css('button'));21 expect(button).toBeTruthy();22 });23 it('should have a input', () => {24 const input = fixture.debugElement.query(By.css('input'));25 expect(input).toBeTruthy();26 });27 it('should have a input with value', () => {28 const input = fixture.debugElement.query(By.css('input'));29 expect(input.nativeElement.value).toBe('1');30 });31 it('should have a input with value 2', () => {32 const input = fixture.debugElement.query(By.css('input'));33 __simulateChange(input.nativeElement, '2');34 fixture.detectChanges();35 expect(input.nativeElement.value).toBe('2');36 });37});

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Using AI Code Generation

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1 const element = fixture.debugElement.query(By.css('input'));2 element.triggerEventHandler('change', { target: { value: 'test' } });3 fixture.detectChanges();4 const element = fixture.debugElement.query(By.css('input'));5 element.triggerEventHandler('change', { target: { value: 'test' } });6 fixture.detectChanges();7 const element = fixture.debugElement.query(By.css('input'));8 element.triggerEventHandler('change', { target: { value: 'test' } });9 fixture.detectChanges();10 const element = fixture.debugElement.query(By.css('input'));11 element.triggerEventHandler('change', { target: { value: 'test' } });12 fixture.detectChanges();13 const element = fixture.debugElement.query(By.css('input'));14 element.triggerEventHandler('change', { target: { value: 'test' } });15 fixture.detectChanges();16 const element = fixture.debugElement.query(By.css('input'));17 element.triggerEventHandler('change', { target: { value: 'test' } });18 fixture.detectChanges();19 const element = fixture.debugElement.query(By.css('input'));20 element.triggerEventHandler('change', { target: { value: 'test' } });21 fixture.detectChanges();22 const element = fixture.debugElement.query(By.css('input'));23 element.triggerEventHandler('change', { target: { value: 'test' } });24 fixture.detectChanges();25 const element = fixture.debugElement.query(By.css('input'));26 element.triggerEventHandler('change', { target: { value: 'test' } });27 fixture.detectChanges();

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Using AI Code Generation

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1const element = fixture.debugElement.query(By.css('input'));2const input = element.nativeElement;3input.value = 'test';4input.dispatchEvent(new Event('input'));5export class MockNgModel {6 public value: any;7 public control: any;8 public __simulateChange(value: any) {9 this.value = value;10 }11}12export function MockNgModelFactory() {13 return new MockNgModel();14}15describe('MockNgModelFactory', () => {16 beforeEach(() => {17 TestBed.configureTestingModule({18 imports: [FormsModule],19 { provide: NgModel, useFactory: MockNgModelFactory },20 });21 fixture = TestBed.createComponent(TestComponent);22 component = fixture.componentInstance;23 fixture.detectChanges();24 });25 it('should set value from outside', () => {26 component.testValue = 'test';27 fixture.detectChanges();28 expect(component.testValue).toEqual('test');29 });30});

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